A portable commercial concrete sand screening machine

Abstract

The present disclosure relates to the technical field of sand screening machines, and one embodiment of the present disclosure provides a commodity concrete sand screening machine convenient to move, which comprises a sand screening machine body, the bottom of the sand screening machine body is movably connected with a box body, and the bottom of the box body is fixedly connected with a bottom plate. In the present disclosure, when the operator moves the sand screening machine body to a specified position, the inclined block moves to the left by rotating the crank handle, so that the inclined surface of the inclined block extrudes and pushes the outer surface of the round rod, the round rod moves upward, the lifting plate drives the rotating rod to tilt, the foot pad moves downward and contacts the ground, and additional braking mode is provided while the self-locking universal wheel is locked, thereby improving the stability of the sand screening machine body during use. The above technical solution solves the technical problem of instability in the prior art.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of sand screening machine technology, and more specifically, to a mobile commercial concrete sand screening machine. Background Technology

[0002] A sand screening machine is a sand and gravel processing equipment used in construction, mining, sand pits and other scenarios. It separates stones, soil and other impurities from sand through vibration, drums or airflow, and realizes sand and gravel particle size classification and purification. It features high automation, high screening efficiency and screen replacement as needed. It can meet the requirements of different projects for sand and gravel purity and particle size, and is a key piece of equipment in the sand and gravel pretreatment process.

[0003] When sand screening machines are used in various work locations such as commercial concrete mixing plants and construction sites, they need to be moved flexibly according to the location of sand and gravel raw material stacks and the distribution of mixing operation points. This reduces material transfer links and improves the production efficiency of commercial concrete. Although existing sand screening machines are equipped with omnidirectional wheels with self-locking function at the bottom, allowing operators to easily adjust the placement of the equipment and quickly complete the movement operation, these self-locking omnidirectional wheels only form point contact with the ground after locking. The contact area is small, making it difficult for the sand screening machine to maintain a stable state when starting up and performing sand and gravel screening operations. Slight shaking or displacement may occur, which may not only affect the accuracy and uniformity of sand and gravel screening, but also increase the noise of the equipment during operation, and even pose safety hazards under high-frequency vibration. It cannot fully meet the needs of efficient on-site operations, so it needs to be improved. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a mobile commercial concrete sand screening machine, which solves the technical problem of unstable placement in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides a mobile commercial concrete sand screening machine, including a sand screening machine body. A box is movably connected to the bottom of the sand screening machine body. A base plate is fixedly connected to the bottom of the box. Self-locking casters are movably installed at the four corners of the bottom of the base plate. Four mounting plates are fixedly connected to the bottom of the base plate. A rotating rod is hinged to the bottom end of each of the four mounting plates. A support block is hinged to the outer end of each rotating rod. A foot pad is fixedly connected to the bottom of each support block. A lifting plate located above the rotating rod is movably sleeved inside the bottom end of the base plate. A round shaft is fixedly installed inside the bottom end of each lifting plate. The outer surface of the round shaft is movably connected to the inner surface of the rotating rod. Four lifting plates are present. A round rod is fixedly connected between the four lifting plates. An inclined block is movably connected to the bottom of the inner surface of the base plate. The top of the inclined block is movably connected to the outer surface of the round rod. A connecting plate is fixedly connected between the inclined blocks.

[0006] As a preferred embodiment of this utility model, the right end of the inclined block is fixedly connected to an installation frame, and the bottom of the installation frame is movably connected to the inner surface of the base plate.

[0007] As a preferred embodiment of this utility model, a threaded rod is movably sleeved inside the right side of the base plate, and a crank handle is fixedly connected to the right end of the threaded rod.

[0008] As a preferred embodiment of this utility model, the left end of the threaded rod extends into the interior of the base plate and is threadedly engaged with the inner wall of the mounting frame, and the left end of the threaded rod is movably connected to the right end of the inclined block.

[0009] As a preferred technical solution of this utility model, a connecting block is fixedly connected to the bottom of the sand screening machine body, and a protective frame is fixedly connected to the bottom of the connecting block. The outer surfaces of the connecting block and the protective frame are movably connected to the inner surface of the box.

[0010] As a preferred embodiment of this utility model, a fixing block is fixedly installed at the bottom of the inner surface of the box, a movable shaft is movably sleeved inside the fixing block, and a gear is fixedly sleeved on the outer surface of the movable shaft.

[0011] As a preferred embodiment of this utility model, a rotating rod is fixedly sleeved on the outer surface of the movable shaft, and a hinge rod is hinged to the top of the rotating rod, with the top of the hinge rod hinged to the bottom of the connecting block.

[0012] As a preferred embodiment of this utility model, a pneumatic cylinder is fixedly connected to the bottom of the inner surface of the box, and a connecting rod is fixedly connected to the left end of the pneumatic cylinder.

[0013] As a preferred embodiment of this utility model, toothed plates are fixedly connected to both the front and rear ends of the connecting rod, and the top of the toothed plates meshes with the outer surface of the gear.

[0014] As a preferred embodiment of this utility model, the bottom of the connecting plate is movably connected to the bottom of the inner surface of the base plate, and the bottom of the connecting plate is smooth.

[0015] The beneficial effects of the embodiments disclosed herein are as follows: 1. In this disclosure, by setting up self-locking casters, foot pads, round rods, and inclined blocks, when the operator moves the sand screening machine body to the designated position, the inclined block moves to the left by rotating the crank handle. This causes the inclined surface of the inclined block to press and push the outer surface of the round rod, causing the round rod to move upward. This, in turn, causes the rotating rod to tilt through the lifting plate, causing the foot pads to move downward and contact the ground. This provides an additional braking method while locking the self-locking casters, thereby improving the stability of the sand screening machine body during use.

[0016] 2. In this disclosure, by setting up a pneumatic cylinder, toothed plate, gear, and rotating rod, during the sand screening process, when the fallen sand particles accumulate too high, the pneumatic cylinder can be activated to push the connecting rod and toothed plate to move to the left, causing the toothed plate to drive the gear to rotate, thereby causing the movable shaft to drive the rotating rod to rotate, which in turn allows the hinged rod to push the connecting block to rise, thus adjusting the height of the sand screening machine body and preventing the screened sand particles from accumulating too high and affecting the normal discharge of sand particles. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure; Figure 2 for Figure 1 A cross-sectional view of the housing in the embodiment; Figure 3 for Figure 2 A bottom view of the protective frame in the embodiment; Figure 4 for Figure 1 A schematic diagram of the box structure in the embodiment; Figure 5 for Figure 4 A schematic diagram of the internal structure of the housing in the embodiment; Figure 6 for Figure 1 A schematic diagram of the internal structure of the base plate in the embodiment; Figure 7 for Figure 6 A bottom view of the bottom plate structure in the embodiment; Figure 8 for Figure 7 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Sand screening machine body; 2. Box; 3. Base plate; 4. Self-locking caster wheel; 5. Mounting plate; 6. Rotating rod; 7. Support block; 8. Foot pad; 9. Lifting plate; 10. Round shaft; 11. Round rod; 12. Inclined block; 13. Connecting plate; 14. Mounting frame; 15. Threaded rod; 16. Handle; 17. Connecting block; 18. Protective frame; 19. Fixing block; 20. Movable shaft; 21. Gear; 22. Rotating rod; 23. Hinge rod; 24. Pneumatic cylinder; 25. Connecting rod; 26. Toothed plate. Detailed Implementation

[0020] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0021] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0023] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1 to 8As shown, a mobile commercial concrete sand screening machine according to an embodiment of the present disclosure is illustrated, including a sand screening machine body 1, a box 2 movably connected to the bottom of the sand screening machine body 1, a base plate 3 fixedly connected to the bottom of the box 2, self-locking casters 4 movably installed at the four corners of the bottom of the base plate 3, mounting plates 5 fixedly connected to the bottom of the base plate 3, and four mounting plates 5 in total. A rotating rod 6 is hinged to the bottom end of each of the four mounting plates 5, a support block 7 is hinged to the outer end of the rotating rod 6, and a foot pad 8 is fixedly connected to the bottom of the support block 7. A lifting plate 9 located above the rotating rod 6 is movably sleeved inside the bottom end of the base plate 3, and a round shaft 10 is fixedly installed inside the bottom end of the lifting plate 9. The outer surface of the round shaft 10 is movably connected to the inner surface of the rotating rod 6. There are four lifting plates 9 in total, and a round rod 11 is fixedly connected between the four lifting plates 9. An inclined block 12 is movably connected to the bottom of the inner surface of the base plate 3, and the top of the inclined block 12 is movably connected to the outer surface of the round rod 11. A connecting plate 13 is fixedly connected between the inclined blocks 12.

[0027] Due to the design of the self-locking caster wheel 4, the operator can push the sand screening machine body 1 to the designated location for sand screening. After the sand screening machine body 1 moves to the designated location, the rotating rod 6 rotates around the hinge point with the mounting plate 5, which allows the foot pad 8 to descend and contact the ground, so that the sand screening machine body 1 can stay stably. There are two inclined blocks 12, and the two inclined blocks 12 are the same size.

[0028] In some examples, the right end of the inclined block 12 is fixedly connected to the mounting frame 14, and the bottom of the mounting frame 14 is movably connected to the inner surface of the base plate 3.

[0029] When the mounting frame 14 moves, it will cause the inclined block 12 to move, thereby enabling the two inclined blocks 12 to move synchronously through the connecting plate 13.

[0030] In some examples, a threaded rod 15 is fitted inside the right side of the base plate 3, and a crank handle 16 is fixedly connected to the right end of the threaded rod 15.

[0031] The design of the crank handle 16 makes it convenient for operators to rotate the threaded rod 15.

[0032] In some examples, the left end of the threaded rod 15 extends into the interior of the base plate 3 and is threaded into the inner wall of the mounting frame 14, and the left end of the threaded rod 15 is movably connected to the right end of the wedge block 12.

[0033] When the threaded rod 15 rotates, it will cause the mounting frame 14 to move, which in turn causes the mounting frame 14 to move the inclined block 12.

[0034] In some examples, a connecting block 17 is fixedly connected to the bottom of the sand screening machine body 1, and a protective frame 18 is fixedly connected to the bottom of the connecting block 17. The outer surfaces of the connecting block 17 and the protective frame 18 are movably connected to the inner surface of the box 2.

[0035] When the protective frame 18 and the connecting block 17 rise inside the box 2, they can block falling sand particles and prevent them from falling into the box 2.

[0036] In some examples, a fixing block 19 is fixedly installed on the bottom of the inner surface of the housing 2, a movable shaft 20 is movably sleeved inside the fixing block 19, and a gear 21 is fixedly sleeved on the outer surface of the movable shaft 20.

[0037] There are four gears 21, all of the same size. When the gears 21 rotate, they can drive the movable shaft 20 to rotate.

[0038] In some examples, a rotating rod 22 is fixedly sleeved on the outer surface of the movable shaft 20, and a hinge rod 23 is hinged to the top of the rotating rod 22. The top of the hinge rod 23 is hinged to the bottom of the connecting block 17.

[0039] The rotation of the rotating rod 22 will push the connecting block 17 and the protective frame 18 upward inside the housing 2 through the hinge rod 23.

[0040] In some examples, a pneumatic cylinder 24 is fixedly connected to the bottom of the inner surface of the housing 2, and a connecting rod 25 is fixedly connected to the left end of the pneumatic cylinder 24.

[0041] When the pneumatic cylinder 24 is activated, it will drive the connecting rod 25 to move to the left.

[0042] In some examples, toothed plates 26 are fixedly connected to both ends of the connecting rod 25, and the top of the toothed plates 26 meshes with the outer surface of the gear 21.

[0043] Because the toothed plate 26 meshes with the connecting rod 25, the toothed plate 26 can drive the gear 21 to rotate when it moves.

[0044] In some examples, the bottom of the connecting plate 13 is movably connected to the bottom of the inner surface of the base plate 3, and the bottom of the connecting plate 13 is smooth.

[0045] Because the bottom of the connecting plate 13 is smooth, the connecting plate 13 can move more smoothly.

[0046] Working principle and usage process of this utility model: When the operator needs to move the sand screening machine body 1, the operator can push the sand screening machine body 1 to move the entire sand screening machine body 1 to the designated location. Then, the operator locks the self-locking universal wheel 4 and rotates the crank handle 16, causing the threaded rod 15 to drive the mounting frame 14 to move to the left. This causes the mounting frame 14 to drive the inclined block 12 to move to the left, so that the inclined surface of the inclined block 12 presses against the outer surface of the round rod 11, thereby causing the round rod 11 to drive the lifting plate 9 to rise. At this time, the round shaft 10 will press against the inner surface of the rotating rod 6, causing the rotating rod 6 to tilt, so that the foot pad 8 can contact the ground downwards, thus cooperating with the self-locking universal wheel 4 to provide more stable support for the sand screening machine body 1.

[0047] When screening sand, if the screened sand accumulates too high and affects the normal screening operation, the pneumatic cylinder 24 is activated to push the connecting rod 25 to the left. At this time, the connecting rod 25 will drive the toothed plate 26 to move to the left, causing the toothed plate 26 to drive the gear 21 and the movable shaft 20 to rotate. The movable shaft 20 will drive the rotating rod 22 to rotate, thereby pushing the connecting block 17 to rise through the hinge rod 23, and thus adjusting the height of the sand screening machine body 1, preventing the screened sand particles from accumulating too high and affecting the normal discharge of sand particles.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A mobile commercial concrete sand screening machine, comprising a sand screening machine body (1), characterized in that: The bottom of the sand screening machine body (1) is movably connected to a box (2), and the bottom of the box (2) is fixedly connected to a base plate (3). Self-locking casters (4) are movably installed at the four corners of the bottom of the base plate (3). A mounting plate (5) is fixedly connected to the bottom of the base plate (3). There are four mounting plates (5), and a rotating rod (6) is hinged to the bottom of each of the four mounting plates (5). A support block (7) is hinged to the outer end of the rotating rod (6). A foot pad (8) is fixedly connected to the bottom of the support block (7). The inner surface of the bottom of the base plate (3) is movable. A lifting plate (9) is connected to the rotating rod (6) above the rotating rod (6). A round shaft (10) is fixedly installed inside the bottom end of the lifting plate (9). The outer surface of the round shaft (10) is movably connected to the inner surface of the rotating rod (6). There are four lifting plates (9). A round rod (11) is fixedly connected between the four lifting plates (9). An inclined block (12) is movably connected to the bottom of the inner surface of the base plate (3). The top of the inclined block (12) is movably connected to the outer surface of the round rod (11). A connecting plate (13) is fixedly connected between the inclined blocks (12).

2. The mobile concrete sand screening machine according to claim 1, characterized in that: The right end of the inclined block (12) is fixedly connected to the mounting frame (14), and the bottom of the mounting frame (14) is movably connected to the inner surface of the base plate (3).

3. The mobile concrete sand screening machine according to claim 1, characterized in that: A threaded rod (15) is movably sleeved inside the right side of the base plate (3), and a crank handle (16) is fixedly connected to the right end of the threaded rod (15).

4. A mobile concrete sand screening machine according to claim 3, characterized in that: The left end of the threaded rod (15) extends into the interior of the base plate (3) and is threaded into the inner wall of the mounting frame (14). The left end of the threaded rod (15) is movably connected to the right end of the inclined block (12).

5. A mobile concrete sand screening machine according to claim 1, characterized in that: The bottom of the sand screening machine body (1) is fixedly connected to a connecting block (17), and the bottom of the connecting block (17) is fixedly connected to a protective frame (18). The outer surfaces of the connecting block (17) and the protective frame (18) are movably connected to the inner surface of the box body (2).

6. A mobile concrete sand screening machine according to claim 1, characterized in that: A fixing block (19) is fixedly installed on the bottom of the inner surface of the box (2). A movable shaft (20) is movably sleeved inside the fixing block (19). A gear (21) is fixedly sleeved on the outer surface of the movable shaft (20).

7. A mobile concrete sand screening machine according to claim 6, characterized in that: A rotating rod (22) is fixedly sleeved on the outer surface of the movable shaft (20). A hinge rod (23) is hinged to the top of the rotating rod (22). The top of the hinge rod (23) is hinged to the bottom of the connecting block (17).

8. A mobile concrete sand screening machine according to claim 1, characterized in that: A pneumatic cylinder (24) is fixedly connected to the bottom of the inner surface of the box (2), and a connecting rod (25) is fixedly connected to the left end of the pneumatic cylinder (24).

9. A mobile concrete sand screening machine according to claim 8, characterized in that: Both ends of the connecting rod (25) are fixedly connected to toothed plates (26), and the top of the toothed plates (26) meshes with the outer surface of the gear (21).

10. A mobile concrete sand screening machine according to claim 1, characterized in that: The bottom of the connecting plate (13) is movably connected to the bottom of the inner surface of the base plate (3), and the bottom of the connecting plate (13) is smooth.

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